Pivoted window-sash.



O. B. POST.

PIVOTED WINDOW BASH.

APPLICATION FILED I'EB.3, 1911 1,012,704. Patented Dec. 26, 1911. .1 i2 2 AIN'T CHARLES B. POST, OF NEW LONDON, OHIO.

PIVOTED WINDOW-SASH.

Specification of Letters Patent.

Application filed February 3, 1911.

To all whom it may concern:

Be it known that I, CHARLES B. Pos'r, a citizen of the United States, and resident of New London, in the county of Huron and State of Ohio, have invented certain new and useful Improvements in Pivoted Window-Sash, of which I hereby declare the following to be a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to'make and use the same.-

The objects of the invention are to'provide an improved form of weather strip for the divided sash of a pivoted window, one portion of the sash being vertically movable in the ordinary guide and parting strips, and the other portion to which the window pane is attached being rotatable to give ready access to every part when cleaning the pane.

It has been found desirable to provide a simple and efiicient weather tight form of joint between the sliding and pivoted portions of the frame, which would not become loose, and which would not rattle when the frame was shaken by the wind. To obtain these results and to obtain a device having increased practicability, efficiency and durability in use, the invention comprises metallic strips secured by one edge upon the adjacent faces of the divided portions of the sash, the free edges of which are shaped to interlock as the pivoted portions are closed within the sliding portions and by means of which the two portions are retained in close engagement with each other, and an air tight joint between them is obtamed.

The invention comprises the combination and arrangement of the various details as hereinafter described, shown in the accompanylng drawings and specifically pointed out in the claims.

In the accompanying drawings Figure 1 is a perspective view of a window and frame showing two revolving window sashes therein, mounted upon vertically sliding sash portions, and provided with the improved device; Fig. 2 is a front elevation of one side of a window frame; Fig. 3 is a perspective view of the pivoted part of one of the divided sash slides, showing the inner side of one of the vertical slides; Fig. 4 is a similar view showing the inner side of one of the outer slides.

In Figs. 3 and 4 the entering edges or corners of the interlocking metal strips are shown. Fig. 5 is a transverse section of the two adjacent portions of a sash, showing the interlocking spring metal plates. In these views 1 is the window frame, 2 and 3 are windows, the side bars of which are vertically divided into the sliding portions 4, 4, and revolving portions 5, 5 respectivelyconnected by means of pivot pins or screws 6, 6. These portions or bars are provided with central longitudinal grooves or gains 7, 7' on their adjacent faces. The bars 4, 4 are provided with spring metal flat strips or longitudinal plates 8, 8 secured on opposite sides of the grooves 7 on their meeting faces, which strips extend nearly to the pivotal point, and the bars 5, 5 are provided with similar strips 9, 9 secured on opposite sides of the grooves 7 The strips extend over the grooves 7, 7 and their free edges register with the edges of the grooves. On

the inner or revolving bars 5, 5, are placed the short spacing plates 13, 13 of equal thickness with the strips 8, 8 and 9, 9. The pivots 6, 6 pass through these plates. Each plate 8 on the bars 4, 4, above the pivotal point of the window is placed on the outer edge of the bar with'its inner free edges 10, 10 just covering the groove 7 and the lower plates 8 below the pivotal point are reversely placed on the outer edge of the bar 4 so as to just cover the groove with their inner free edges 11, 11 as shown in Fig. 3. It will be seen from the drawings that the strips on the sliding and revolving sash portions are all in the same plane and their free edges are enabled to pass each other because of the grooves in the sash portions, thus enabling them to exert a spring pressure upon each other.

The plates 9, 9, on the revolving portion are reversely placed as shown in Fig. 4 so that when the window is closed the outwardly bent corners 12, 12 of one set of plates will engage the similarly bent corners 14, 14 of the other set of plates, the result being that one set of plates will lift and pass below the other set similarly to the action of the blades of a pair of shears, as shown in Fig. 5 and their spring action when thus pressed apart will draw the parts together and close tightly the opening between the bars and thus the employment of springs at the pivotal point is avoided. The grooves receive the double thickness of the metal so that no extra space is required. The ends of the interlocking plates will enter more gradually. The spacing plates 18, 13 close the central opening between the spring plates 8 and 9. WVhen in the vertical position the bars become parallel and the free edge of one spring plate will engage the edge of the groove in the other bar as shownin Fig. 5. The edges of the grooves thus form stops for the bars to hold them in the vertical position. The

vertically sliding bars 1, 1, are attached to the window frame by cords C passing over rollers R, R in theusual manner, so as to readily slide in the frame.

Having described the invention what I claim as new and desire to secure by Letters Patent is:

1. In a revoluble window, longitudinally divided vertical bars forming vertically slidable portions, and revoluble portions pivoted to the slidable portions, and flat spring metal strips secured to the 0pposed edges of the respective portions of the window sash at their vertical outer edges, in a single plane, providing free inner edges, the metal strips on one portion adapted to lift and pass under the metal strips on the adjacent portions, in a manner to exert a continual spring tension the entire length of the said metal strips, and to form a double thickness thereof, the said slidable and revoluble sash portions provided with grooves in their meeting edges adapted to receive said double thickness of material.

2. A vertically divided window sash comprising, in combination slidable and revolu- Copies of this patent may be obtained for ble bars pivoted together, said portions being fitted with grooves on their adjacent faces, metallic spring strips secured to said bars at their outer edges, said metallic spring strips being arranged in one plane, each having its inner edge free and in line with the edges of one of said grooves, the walls of said grooves adapted to form abutting surfaces for the 'free edges of said spring plates, in a manner to bring the divided portions of the sash parallel'when revolved to interlocking position of the said spring plates, and serve as stops therefor.

3. In a window sash, vertically divided side rails forming slidable and rotating portions pivoted together in a manner to allow the rotating portions to revolve while the other portions remain in vertical position within the window frame, adjacent faces for the said sliding and rotating portions provided with longitudinal grooves and spring strips attached to said'faces on opposite sides of said grooves, in one plane,

and having their other edges free to raise and interlock with each other,"said grooves allowing room for the spring action and for the double thickness of the said spring plates in the middle portion of the divided rail section when brought into interlocking position.

In testimony whereof, I hereunto set my hand this 21st day of October 1910.

CHARLES B. POST.

five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

